Now showing: United States - Postage stamps (1847 - 2017) - 6084 stamps.
20. April WM: None Design: H. T. Wybrandi - Raue. Engraving: Bureau of Engraving & Printing. Perforation: 11
![[The 200th Anniversary of Diplomatic Relations between USA & The Netherlands, type BBN]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/BBN-s.jpg)
21. April WM: None Design: Bradbury Thompson. Engraving: Bureau of Engraving & Printing. Perforation: 11
![[Library of Congress, type BBO]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/BBO-s.jpg)
27. April WM: None Design: A. Saavedra, J. Boyd y J. Creamer. Engraving: Bureau of Engraving & Printing. Perforation: 10 vertical
![[Consumer Education - Coil stamp, type BBP]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/BBP-s.jpg)
